Model comparison
Gemini 3.1 Flash Lite vs Grok 3
Gemini 3.1 Flash Lite and Grok 3 score almost the same on the Noometry Index (40.8 vs 39.9), so choose on price, context window or the category you care about most.
Last verified . 23 shared benchmarks.
GoogleSummary
- They share 23 benchmarks with published results for both. Gemini 3.1 Flash Lite scores higher in 5 categories and Grok 3 in 4 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Gemini 3.1 Flash Lite leads 22.9 to 13.7.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 80% for Gemini 3.1 Flash Lite and 55.6% for Grok 3.
Side by side
| Gemini 3.1 Flash Lite | Grok 3 | |
|---|---|---|
| Provider | xAI | |
| Noometry Index | 40.8 | 39.9 |
| Released | 2026-03-03 | 2025-04-09 |
| Weights | Proprietary | Proprietary |
| Context window | 1.05M | — |
| Max output | 66K | — |
| Input $ / M tokens | $0.25 | — |
| Output $ / M tokens | $1.50 | — |
| Results tracked | 38 | 40 |
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Category by category
Coding Grok 3 leads
Gemini 3.1 Flash Lite: 37.8 (#188), Grok 3: 41.9 (#115)
| Benchmark | Gemini 3.1 Flash Lite | Grok 3 |
|---|---|---|
| WeirdML | 52.2% | 37.2% |
| LMArena Coding | 1400 | 1432 |
| Aider Polyglot | — | 53.3% |
| LMArena WebDev | 1256 | — |
| SciCode | 41.9% | — |
| ALE-Bench | 797.73 | — |
Agentic & Tool Use Too close to call
Gemini 3.1 Flash Lite: 30.2 (#79), Grok 3: 30.5 (#76)
| Benchmark | Gemini 3.1 Flash Lite | Grok 3 |
|---|---|---|
| DeepResearch Bench | 37.3% | — |
| BALROG | — | 29.5% |
Reasoning Gemini 3.1 Flash Lite leads
Gemini 3.1 Flash Lite: 22.9 (#186), Grok 3: 13.7 (#333)
| Benchmark | Gemini 3.1 Flash Lite | Grok 3 |
|---|---|---|
| Kagi LLM Benchmark | 67.2% | 61.3% |
| LMArena Hard Prompts | 1407 | 1434 |
| Epoch Capabilities Index | 144.47 | 138.33 |
| ARC-AGI-2 | — | 0% |
| SimpleBench | — | 36.1% |
| NYT Connections (extended) | 8.2% | — |
| ARC-AGI-1 | — | 5.5% |
| CritPt | 1.1% | — |
| Chess Puzzles | 25% | — |
| EnigmaEval | 3% | — |
| Thematic Generalization | 63.3% | — |
| DTBench | 76.8% | — |
| LMCA | 35% | — |
| ForecastBench | 54.4 | — |
Math Gemini 3.1 Flash Lite leads
Gemini 3.1 Flash Lite: 40.7 (#90), Grok 3: 38.0 (#145)
| Benchmark | Gemini 3.1 Flash Lite | Grok 3 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 80% | 55.6% |
| LMArena Math | 1428 | 1391 |
| FrontierMath (Tiers 1-3) | 27.7% | — |
| Omni-MATH | — | 46.4% |
| MATH Level 5 | — | 88.7% |
| FrontierMath (Feb 2025 set) | — | 3.8% |
| FrontierMath Tier 4 (v1) | — | 0% |
Knowledge Grok 3 leads
Gemini 3.1 Flash Lite: 41.9 (#104), Grok 3: 46.2 (#82)
| Benchmark | Gemini 3.1 Flash Lite | Grok 3 |
|---|---|---|
| GPQA Diamond | 81.8% | 75.8% |
| Vectara Hallucination Rate | 8.2% | 5.8% |
| LMArena Expert | 1398 | 1421 |
| Humanity's Last Exam | 8.6% | — |
| MMLU-Pro | — | 78.8% |
| Confabulations | — | 14.2% |
| GPQA (HELM) | — | 65% |
Multimodal Not comparable
Gemini 3.1 Flash Lite: 39.4 (#60), Grok 3: —
| Benchmark | Gemini 3.1 Flash Lite | Grok 3 |
|---|---|---|
| LMArena Vision | 1240 | — |
Multilingual Too close to call
Gemini 3.1 Flash Lite: 52.3 (#86), Grok 3: 52.3 (#87)
| Benchmark | Gemini 3.1 Flash Lite | Grok 3 |
|---|---|---|
| LMArena Non-English | 1411 | 1410 |
| LMArena Chinese | 1461 | 1448 |
| LMArena French | 1424 | 1460 |
| LMArena German | 1429 | 1431 |
| LMArena Japanese | 1413 | 1387 |
| LMArena Korean | 1392 | 1373 |
| LMArena Russian | 1420 | 1416 |
| LMArena Spanish | 1421 | 1417 |
Instruction Following Grok 3 leads
Gemini 3.1 Flash Lite: 72.7 (#131), Grok 3: 75.0 (#73)
| Benchmark | Gemini 3.1 Flash Lite | Grok 3 |
|---|---|---|
| LMArena Instruction Following | 1377 | 1409 |
| IFEval | — | 88.4% |
Long Context Gemini 3.1 Flash Lite leads
Gemini 3.1 Flash Lite: 42.5 (#122), Grok 3: 38.7 (#192)
| Benchmark | Gemini 3.1 Flash Lite | Grok 3 |
|---|---|---|
| LMArena Longer Query | 1394 | 1439 |
| Fiction.LiveBench | — | 58.3% |
Writing & Preference Gemini 3.1 Flash Lite leads
Gemini 3.1 Flash Lite: 60.9 (#94), Grok 3: 55.8 (#141)
| Benchmark | Gemini 3.1 Flash Lite | Grok 3 |
|---|---|---|
| LMArena Text | 1416 | 1426 |
| LMArena Creative Writing | 1401 | 1414 |
| LMArena Multi-Turn | 1417 | 1425 |
| Short-Story Creative Writing | — | 76.4% |
| EQ-Bench Creative Writing | — | 1186 |
| WildBench | — | 84.9% |
Frequently asked questions
Is Gemini 3.1 Flash Lite better than Grok 3?
Gemini 3.1 Flash Lite and Grok 3 score almost the same on the Noometry Index (40.8 vs 39.9), so choose on price, context window or the category you care about most.
Is Gemini 3.1 Flash Lite or Grok 3 better for coding?
Grok 3 scores higher on coding benchmarks: 41.9 versus 37.8 in the Noometry coding category.
How many benchmarks do Gemini 3.1 Flash Lite and Grok 3 share?
23 benchmarks have published results for both models. Gemini 3.1 Flash Lite has 38 scored results on Noometry and Grok 3 has 40.